What aspect of Yahtzee are you looking for? The press your luck? The set formation?
Both of those might be filled by Circus Flohcati, a press-your luck cardgame by Knizia which has a minor set-collection aspect.
It would scoring by collecting the right sets, with a chance of improving your hand by discarding and drawing like Poker. In general
filling the boxes with your best sets like Yathzee and score. I'll take a look to Circus Flohcati.